Water distribution device for domestic sewage treatment

Abstract

This utility model belongs to the field of sewage treatment technology and discloses a water distribution device for domestic sewage treatment, including a treatment tank. A fixed plate is installed at the top of the treatment tank. A central rotating shaft is rotatably connected to the inner surface of the fixed plate. The central rotating shaft is a hollow tubular structure. Six connecting pipes are fixedly connected to the outer surface of the central rotating shaft. Water distribution pipes are snapped onto the outer surfaces of the six connecting pipes. Several nozzles are installed on the outer surfaces of the six water distribution pipes at equal intervals. The nozzles are inclined, and the inclination direction of the nozzles forms a driving angle with the radial direction of the corresponding water distribution pipe. By setting the nozzles at an inclination and forming a driving angle with the radial direction of the water distribution pipe, the water distribution pipe can rotate automatically without a motor under the action of the water jet reaction force, effectively reducing energy consumption, saving operating costs, and avoiding transmission component failure problems.

Description

Technical Field

[0001] This utility model belongs to the field of sewage treatment technology, specifically a water distribution device for domestic sewage treatment. Background Technology

[0002] With the acceleration of urbanization and the improvement of environmental protection standards, domestic sewage treatment has become a key aspect of environmental protection. In mainstream treatment processes such as activated sludge and biofilm processes, the water distribution device is a core component, and its performance directly affects the sewage treatment efficiency and system stability.

[0003] Meanwhile, the patent specification with application number CN217921508U discloses a water distributor for industrial wastewater treatment equipment, "including a treatment tank, a water distributor is provided at the upper end of the treatment tank, a control panel is fixedly installed on the outer side wall of the treatment tank, the water distributor includes a main pipe, a connecting pipe is connected to the lower end of the main pipe, water distribution pipes are connected to both sides of the connecting pipe, a reciprocating motion device is provided at the lower end of the water distribution pipe, the reciprocating motion device includes a first support block and a second support block, a clamping pad is provided in both the first support block and the second support block, the main pipe includes an upper connecting pipe and a lower connecting pipe, and the upper connecting pipe and the lower connecting pipe are threadedly connected";

[0004] Most existing water distribution devices rely on external power equipment such as motors to drive the water distribution pipe to rotate. Long-term operation will consume a lot of electricity, increasing the operating cost of sewage treatment. At the same time, the complex power transmission structure is prone to failure and is difficult to maintain. Furthermore, the water distribution pipe is fixedly connected to the central shaft, and disassembly requires tools and is time-consuming. Maintenance requires shutdown, which affects the treatment efficiency.

[0005] Therefore, a water distribution device for domestic sewage treatment is proposed to address the above problems. Utility Model Content

[0006] To address the problems mentioned in the background art, this utility model provides a water distribution device for domestic sewage treatment, which effectively reduces energy consumption, saves operating costs, avoids transmission component failures, and allows workers to quickly disassemble and assemble the water distribution pipe by hand, improving convenience and treatment continuity.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a water distribution device for domestic sewage treatment, comprising a treatment tank, a fixed plate installed at the top of the treatment tank, a central rotating shaft rotatably connected to the inner surface of the fixed plate, the central rotating shaft being a hollow tubular structure, six connecting pipes fixedly connected to the outer surface of the central rotating shaft, water distribution pipes being snapped onto the outer surfaces of the six connecting pipes, and a plurality of nozzles evenly spaced on the outer surfaces of the six water distribution pipes, the plurality of nozzles being inclined, and the inclination direction of the plurality of nozzles forming a driving angle with the radial direction of the corresponding water distribution pipe.

[0008] Preferably, the water outlet end of the nozzle is flared.

[0009] Preferably, a plurality of the water distribution pipes are arranged radially around the central rotation axis.

[0010] Preferably, a counterweight is fixedly connected to one end of each of the water distribution pipes away from the central rotation axis.

[0011] Preferably, the outer surface of the water distribution pipe is provided with a receiving groove, the inner surface of the receiving groove is slidably connected with a movable ring, the outer surface of the movable ring is fixedly sleeved with a movable tube, the outer surface of the receiving groove is wound with a return spring, one end of the return spring is fixedly connected to the movable ring, the outer surface of the receiving groove is provided with a plurality of spherical grooves, the inner surface of the plurality of spherical grooves is provided with balls, and the outer surface of the connecting tube is provided with a fixing groove for use with the plurality of balls.

[0012] Preferably, the outer surface of the connecting pipe is provided with a sealing ring, and one end of the connecting pipe is arc-shaped.

[0013] Preferably, the outer diameter of the ball is adapted to the inner diameter of the spherical groove, and the depth of the spherical groove is less than the radius of the ball, so as to ensure that the ball can roll freely in the spherical groove and maintain a stable fit with the fixed groove.

[0014] Preferably, two guide blocks are fixedly connected to the inner surface of the moving pipe, and a guide groove is provided on the outer surface of the water distribution pipe to cooperate with the two guide blocks.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model, by tilting the nozzle and forming a driving angle with the radial direction of the water distribution pipe, allows the water distribution pipe to rotate automatically without a motor under the action of the water jet reaction force, reducing the use of external power equipment, effectively reducing energy consumption, saving operating costs, and avoiding transmission component failure problems.

[0017] 2. By setting up a movable tube, under the action of the elastic restoring force of the return spring and the fixed groove of the ball, the present invention enables workers to quickly disassemble and assemble the water distribution pipe by hand, thereby improving convenience and continuity of processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a bottom view of the water distribution pipe structure of this utility model;

[0020] Figure 3 This is a schematic diagram showing the disassembled structure of the water distribution pipe and connecting pipe of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the movable tube of this utility model.

[0023] In the diagram: 1. Treatment tank; 2. Fixing plate; 3. Central rotating shaft;

[0024] 4. Connecting pipe; 41. Fixing groove; 42. Sealing ring; 43. Moving pipe; 431. Moving ring; 432. Guide block; 433. Return spring; 44. Guide groove;

[0025] 45. Receiving groove; 451. Spherical groove; 452. Ball bearing;

[0026] 5. Water distribution pipe; 51. Counterweight;

[0027] 6. Spray nozzle. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1 to 5As shown, this utility model provides a water distribution device for domestic sewage treatment, including a treatment tank 1. A fixing plate 2 is installed at the top of the treatment tank 1. A central rotating shaft 3 is rotatably connected to the inner surface of the fixing plate 2. The central rotating shaft 3 is a hollow tubular structure. Six connecting pipes 4 are fixedly connected to the outer surface of the central rotating shaft 3. Water distribution pipes 5 are snapped onto the outer surface of each of the six connecting pipes 4. Several nozzles 6 are installed on the outer surface of each of the six water distribution pipes 5, which are evenly distributed. The nozzles 6 are all inclined, and the inclination direction of the nozzles 6 forms a driving angle with the radial direction of the corresponding water distribution pipe 5. By forming a driving angle through the inclination of the nozzles 6, the water distribution pipes 5 are automatically rotated around the central rotating shaft 3 by the reaction force of the water jet. No external power is required, so as to achieve 360° uniform water distribution in the treatment tank 1 and reduce energy consumption.

[0030] Specifically, the water outlet of nozzle 6 is flared, which increases the water flow diffusion range and improves the sewage treatment effect.

[0031] like Figures 1 to 5 As shown, several water distribution pipes 5 are radially distributed around the central rotation axis 3. The radially distributed water distribution pipes 5 can cover a larger area. In conjunction with the rotational motion, they can eliminate blind spots in the water distribution within the treatment tank 1 and improve the uniformity of water distribution.

[0032] Furthermore, each of the water distribution pipes 5 is fixedly connected to a counterweight 51 at one end away from the central rotating shaft 3. The counterweight 51 balances the centrifugal force when the water distribution pipes 5 rotate, reducing shaking and noise during equipment operation and extending the service life of the device.

[0033] like Figures 1 to 5 As shown, the outer surface of the water distribution pipe 5 is provided with a receiving groove 45, and a moving ring 431 is slidably connected to the inner surface of the receiving groove 45. A moving tube 43 is fixedly sleeved on the outer surface of the moving ring 431. A return spring 433 is wound around the outer surface of the receiving groove 45. One end of the return spring 433 is fixedly connected to the moving ring 431. The outer surface of the receiving groove 45 is provided with several spherical grooves 451, and the inner surface of each of the several spherical grooves 451 is provided with a ball 452. The outer surface of the connecting pipe 4 is provided with a fixing groove 41 that is used to cooperate with the several balls 452. The snap-fit ​​structure between the balls 452 and the fixing groove 41, together with the return spring 433, allows for quick disassembly and assembly of the water distribution pipe 5 without tools, which is convenient for equipment maintenance and repair.

[0034] It is worth noting that the outer surface of the connecting pipe 4 is provided with a sealing ring 42, and one end of the connecting pipe 4 is made of arc shape. The sealing ring 42 enhances the sealing of the connection between the connecting pipe 4 and the water distribution pipe 5 and prevents sewage leakage. The arc shape makes it easy for the water distribution pipe 5 to be quickly aligned and snapped together, improving installation efficiency.

[0035] like Figures 1 to 5As shown, the outer diameter of the ball 452 is matched with the inner diameter of the spherical groove 451, and the depth of the spherical groove 451 is less than the radius of the ball 452, so as to ensure that the ball 452 can roll freely in the spherical groove 451 and maintain a stable fit with the fixed groove 41. The precisely matched ball 452 and spherical groove 451 ensure the stability of the snap-fit ​​structure, prevent the water distribution pipe 5 from falling off during rotation, and improve the reliability of the device.

[0036] It is worth emphasizing that two guide blocks 432 are fixedly connected to the inner surface of the moving pipe 43, and a guide groove 44 is opened on the outer surface of the water distribution pipe 5 to cooperate with the two guide blocks 432. The cooperation between the guide blocks 432 and the guide groove 44 restricts the movement direction of the moving pipe 43, ensuring that the ball 452 is accurately embedded in the fixed groove 41, thereby improving the installation stability and operation convenience.

[0037] Working principle and process: During sewage treatment, sewage first flows into the connecting pipe 4 through the hollow pipe of the central rotating shaft 3, then into the water distribution pipe 5, and finally sprays out from the inclined nozzle 6. Due to the inclined setting of the nozzle 6, the reaction force generated by the water jet drives the water distribution pipe 5 to rotate around the central rotating shaft 3, achieving uniform water distribution. When it is necessary to disassemble the water distribution pipe 5 for maintenance or repair, the operator pulls the moving pipe 43 outward, causing the moving ring 431 to slide in the receiving groove 45, compressing the return spring 433. As the moving pipe 43 moves, the ball 452 embedded in the spherical groove 451 is synchronously brought out until it is completely separated from the fixing groove 41 on the outer surface of the connecting pipe 4. At this time, the jamming state between the water distribution pipe 5 and the connecting pipe 4 is released, and the operator can directly pull the water distribution pipe 5 from the connecting pipe 4, and then perform maintenance on the water distribution pipe 5.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water distribution device for domestic sewage treatment, comprising a treatment tank (1), characterized in that: A fixing plate (2) is installed at the top of the treatment tank (1). A central rotating shaft (3) is rotatably connected to the inner surface of the fixing plate (2). The central rotating shaft (3) is a hollow tubular structure. Six connecting pipes (4) are fixedly connected to the outer surface of the central rotating shaft (3). Water distribution pipes (5) are snapped onto the outer surfaces of the six connecting pipes (4). Several nozzles (6) are installed on the outer surfaces of the six water distribution pipes (5) at equal intervals. The nozzles (6) are inclined, and the inclination direction of the nozzles (6) forms a driving angle with the radial direction of the corresponding water distribution pipe (5).

2. The water distribution device for domestic sewage treatment according to claim 1, characterized in that: The nozzle (6) has a flared outlet.

3. The water distribution device for domestic sewage treatment according to claim 1, characterized in that: Several of the water distribution pipes (5) are radially distributed around the central rotation axis (3).

4. A water distribution device for domestic sewage treatment according to claim 1, characterized in that: Each of the water distribution pipes (5) has a counterweight (51) fixedly connected to one end away from the central rotation axis (3).

5. A water distribution device for domestic sewage treatment according to claim 1, characterized in that: The outer surface of the water distribution pipe (5) is provided with a receiving groove (45). The inner surface of the receiving groove (45) is slidably connected with a moving ring (431). The outer surface of the moving ring (431) is fixedly sleeved with a moving tube (43). The outer surface of the receiving groove (45) is wound with a return spring (433). One end of the return spring (433) is fixedly connected to the moving ring (431). The outer surface of the receiving groove (45) is provided with a plurality of spherical grooves (451). The inner surface of the plurality of spherical grooves (451) is provided with ball bearings (452). The outer surface of the connecting pipe (4) is provided with a fixing groove (41) that is used in conjunction with the plurality of ball bearings (452).

6. A water distribution device for domestic sewage treatment according to claim 5, characterized in that: The outer surface of the connecting pipe (4) is provided with a sealing ring (42), and one end of the connecting pipe (4) is made of arc shape.

7. A water distribution device for domestic sewage treatment according to claim 5, characterized in that: The outer diameter of the ball (452) is adapted to the inner diameter of the spherical groove (451), and the depth of the spherical groove (451) is less than the radius of the ball (452) to ensure that the ball (452) can roll freely in the spherical groove (451) and maintain a stable fit with the fixed groove (41).

8. A water distribution device for domestic sewage treatment according to claim 5, characterized in that: The inner surface of the moving pipe (43) is fixedly connected to two guide blocks (432), and the outer surface of the water distribution pipe (5) is provided with guide grooves (44) that cooperate with the two guide blocks (432).

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